rear quater panel replacement. - Page 2 - Defender Source
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  #21  
Old December 8th, 2012, 05:53 AM
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junkyddog11
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Quote:
Originally Posted by sonoronos View Post
I'm not sure if going with a galvanized bracket will change the situation much. If left unprotected, the aluminum and zinc will react together.
Galvanizing does help as the aluminum has much less of a reaction with zinc than it does plain steel.

few observations from the trenches.....

Rubber / nylon / snivelon etc washers and attempts at isolation in this manner tend to hold moisture in the joint which is actually worse as water is the third ingredient in the electrolytic corrosion that causes this issue.

Adding SS fasteners to this mix makes it so much worse (especially if you have to remove the fasteners). As a side note I am still not sure what the fascination is with the SS fasteners on the body.......typical conversation here would go like;
customer-"well the frame swap should be a breeze as I swapped all the fasteners to SS with a kit I bought online"
Shop owner-"Awesome.......I just bought a case of cutting wheels"

I have been using a product for a number of years that has performed brilliantly for anti galling / seizing / isolation of dissimilar metals .
http://www.tikal-online.de/ms/en/pro...FQZnOgodBlMA5g.

This product applied during assembly and after quality paint makes a huge difference. I'm not big on miracle cures but this stuff works very well. I've been testing on my junk which practicly lives in salt water...... never mind the NE road salt........and it really is the shizzle.
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  #22  
Old December 8th, 2012, 11:50 AM
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Ed
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Photos

Note that there's no paint or primer below the body line. Or the paint has weathered away.

Either way, it's obvious why the corrosion occurs.

Note also the corrosion is worst at the edge of the aluminum
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  #23  
Old December 12th, 2012, 12:23 AM
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jeroen
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Hi Ed,
Thanks for the pics.
Did you removed the entire roof? Was it easy to remove this panel?
Can you also post pics, and tell me about refitting the new panel?
Thanks in advance!
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  #24  
Old December 12th, 2012, 06:21 AM
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As you can see from Doctor Kang's pic, the tab for the chassis mount is right in the way of where you want the panel to go. You can also see the bent-under part with the two rivets which Ed cut in order to get the panel out.
It is best to unbolt the remaining tabs, the wing stays (if fitted...my 109 tub has them) and maybe the fuel filler so that you can at least jack up the stern off the chassis enough to clear the tab.
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  #25  
Old December 12th, 2012, 09:32 AM
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Quote:
Originally Posted by Skeena river rover View Post
Hi Ed,
Thanks for the pics.
Did you removed the entire roof? Was it easy to remove this panel?
Can you also post pics, and tell me about refitting the new panel?
Thanks in advance!
I did remove the entire roof, cappings...everything except the bulkhead and the tub.

I have not yet refitted the new panels, but when I do I will of course post pictures.

Quote:
Originally Posted by Bill
It is best to unbolt the remaining tabs, the wing stays (if fitted...my 109 tub has them) and maybe the fuel filler so that you can at least jack up the stern off the chassis enough to clear the tab.
Bill is absolutely correct as usual. Once the tub is unbolted from the rear cross, you can actually lift the rear of the tub free of the tabs by hand. The tub is astoundingly light.
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  #26  
Old December 12th, 2012, 09:39 AM
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Jeff A
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Ed - out of curiosity, how do you plan to address the corrosion on the rear quarter where it meets the rear crossmember tab (the section circled in red in your photo above). Aside from replacement, what options are you thinking?
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  #27  
Old December 12th, 2012, 01:12 PM
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Ed
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Quote:
Originally Posted by jefferson View Post
Ed - out of curiosity, how do you plan to address the corrosion on the rear quarter where it meets the rear crossmember tab (the section circled in red in your photo above). Aside from replacement, what options are you thinking?
Hi Jeff, the plan is a thick coating of 2part epoxy primer, basecoat, urethane clearcoat, black nylon washer and stainless fasteners.
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  #28  
Old December 12th, 2012, 10:12 PM
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I like that idea!
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